I have been using Aldiko and Kindle for reading on my Android devices, but I find it annoying to always have to convert epub books to mobi format just so I can synchronize them across devices using Whispersync.

There is an Aldiko Sync app, but it requires root privileges and I have not rooted any of my devices and I don't want to.

Is there an app that can synchronize, especially reading progress, across devices? Even an open source project where I have to run something on my own server would be fine.

2 Answers 2


Moon+ Reader can do this, storing the data in Dropbox or in Google Drive.

(Note: I have not actually tried this functionality myself as I can't bear to use Moon+ due to its horrible UI and poor support for the ePub standard. But the feature is there in the settings, if you can find the right settings page...)

Google Play Books does so too - but it does not directly open files stored on the device (you have to let it upload them to Google's servers and then download them again...)

  • It works with either Google Drive or Dropbox, though getting Moon+ to actually link with Drive can sometimes be a real pain (I usually have to force it to create a settings backup there, otherwise it won't even acknowledge it exists as a location).
    – Argent
    Commented Oct 1, 2014 at 17:32
  • Oh, also. Google Play Books, but it only works for EPUB and PDF formats.
    – Argent
    Commented Oct 2, 2014 at 16:11
  • Which version of Google Books are you using? None that I tried were able to display a book
    – d0g
    Commented Oct 5, 2014 at 4:18
  • beware that with Google Play Books you won't be able to search unless you bought your books on google store
    – JinSnow
    Commented Feb 1, 2015 at 16:03
  • What's so horrible about the Moon+ Reader UI or ePub support? Would you please name some other readers where those flaws are absent or solvable? Commented Oct 21, 2016 at 14:19

If you download Overdrive on your PC, tablet and smartphone, it will sync your progress, bookmarks, etc. You will need a library login and password. Works for Android and Apple.

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